US5091069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone generation methods
Assignee: Ozonia International SA
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Filing: 1991-04-25
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Granted: 1992-02-25
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Expires: 2011-04-25
Abstract
Abstract A current source inverter power supply for an ozone generator which results in improved efficiency and reliability in operation of such generators has an AC/DC converter coupled through a large inductance to a DC/AC inverter that, in turn, is coupled at its output to the primary of a high voltage transformer. Such transformer has an air gap in its core to supply the electrical characteristics necessary for resonance with the load which is capacitive in nature. Thyristors in the inverter are naturally commutated so the switching frequency is close to, but slightly above, the natural resonant frequency of the inverter/transformer/ozone generator circuit.
Inventors
- 👤 Richard J. Hendrickson
- 👤 Kenneth G. Kafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:13
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; C01B13/115; H; H02; H02M; H02M5/00; H02M5/40; H02M5/42; H02M5/44; H02M5/443; H02M5/45; H02M5/4505; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/523; H02M7/5233; H02M7/5236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
In a method of generating ozone by outputting electric power from a DC/AC inverter to opposed conductive electrodes between which a gas to be ozonized is passed through a high impedance that is parallel to said electrodes, the improvement for increasing reliability and economy of operation which comprises: energizing said inverter with a high impedance, substantially smooth dc current sufficient to hold the waveform of the electric current in said electric power from said inverter substantially constant and maintaining a substantially square waveform in said electric current while permitting the voltage in said output electric power to assume the waveshape appropriate for the load imposed by said electrodes and said parallel high impedance.
Claim 2
Dependent Claim
113 words
In a method of generating ozone by outputting electric power from a DC/AC inverter to opposed conductive electrodes between which a gas to be ozonized is passed through a high impedance that is parallel to said electrodes, the improvement for increasing reliability and economy of operation which comprises: energizing said inverter with a high impedance, substantially smooth dc current sufficient to hold the waveform of the electric current in said electric power from said inverter substantially constant and maintaining a substantially square waveform in said electric current while permitting the voltage in said output electric power to assume the waveshape appropriate for the load imposed by said electrodes and said parallel high impedance.
References Cited (Backward Citations)
US3800210A
Cited
US4682266A
Cited
US4713220A
Cited
US4752866A
Cited
US4833583A
Cited
US4869881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |